Digital ammeter



FIG. 1 is a perspective view of the digital ammeter of the present design;

FIG. 2 is a rear view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a right side view thereof, the left side view being a mirror image;

FIG. 5 is a top view thereof; and,

FIG. 6 is bottom view thereof.

The broken line portions of the drawings are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a digital ammeter, as shown and described. 